KMB NOVAR-1 Series, Operating Manual

Page: 32 / 77

Novar 1xxx KMB systems
32
4.1.10 Parameters 15, 16 – Type of Measurement Voltage and Connection
Configuration
Parameter 15 determines if the measurement voltage connected is phase (phase-neutral,
U=LN
U=LN U=LN
U=LN
,
default value) or line (phase-phase,
U=LL
U=LL U=LL
U=LL
). If the measurement voltage is connected to the power
supply transformer’s side which is opposite to measurement current connection, the connection
configuration value must be set in accordance with transformer type – see description in a separate
chapter further below.
Connection configuration parameter must definitely be set correctly in installation , even if
automatic connection configuration detection process is assumed to take place. Otherwise the power
factor measured will be evaluated with errors!
If the parameter value is specified as phase voltage (
U=LN
U=LN U=LN
U=LN
), the controller also presets the
compensation system’s nominal voltage value U
NOM
(parameter 18) to 230 V. If the parameter value is
specified as line voltage (
U=LL U=LL U=LL U=LL
), the U
NOM
(parameter 18) is preset to 400 V.
The connection configuration parameter (15) value set will be kept even on controller initialization (see
description further below).
Parameter 16 determines the method of measurement voltage connection with respect to
measurement current, that is between which phases or phase and neutral wire the measurement
voltage is connected. It is assumed that the metering current transformer is in phase 1 and its
orientation (terminals k, l) corresponds to real orientation supply –> appliance. The method of
connection is specified as one of six combinations shown in Table 4.2.
Table 4.2: Measurement voltage connection
phase measurement voltage
-
U=LN U=LN U=LN U=LN
line measurement voltage
-
U=LL U=LL U=LL U=LL
# connection # connection
1
L1-0 L1-0 L1-0 L1-0
1
L1-L2 L1-L2 L1-L2 L1-L2
2
L2-0 L2-0 L2-0 L2-0
2
L2-L3 L2-L3 L2-L3 L2-L3
3
L3-0
L3-0 L3-0
L3-0
3
L3-L1
L3-L1 L3-L1
L3-L1
4
0-L1 0-L1 0-L1 0-L1
4
L2-L1 L2-L1 L2-L1 L2-L1
5
0-L2 0-L2 0-L2 0-L2
5
L3-L2 L3-L2 L3-L2 L3-L2
6
0-L3 0-L3 0-L3 0-L3
6
L1-L3 L1-L3 L1-L3 L1-L3
Notes:
•
It is assumed that the metering current transformer is in phase 1 and its orientation (terminals
k, l) corresponds to real orientation supply –> appliance.
•
The method of connection is shown as x–y where x represents the phase connected to
controller’s terminal
L and y represents the phase connected to controller’s terminal N/L (0
represents the neutral wire).
If the method of connection value is entered as not specified (---- value), the automatic connection
configuration detection process is started, with exception of case when
linear switching mode ( see
parameter 21) is set. In such case the process is not started and it is necessary to set the method of
connection manually.
If the type of connection (phase or line, parameter 15) is changed, the method of connection
(parameter 16) is automatically set to the unspecified value.